“pole-changing control”的概念、定义、翻译、参考文献-科学参考

单词	pole-changing control
释义	pole-changing control [`pōl ¦chānj·iŋ kǝn´trōl] ^{ELECTROMAGNETISM} A method of obtaining two or more running speeds of a three-phase motor by making changes in the number of magnetic poles, usually by making changes in the coil connections at the winding terminals.
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